Meh, I don't like mushrooms and really don't like the black bean burgers and haven't liked any other veggie burger I've tried, but the Impossible ones I can hardly tell the difference from cow, so ... why wouldn't I choose the impossible when given the opportunity?
So, for me, I guess the answer is that if I want a burger, I want a burger, why would I go for something that doesn't taste anything like a burger?